Qt3D Clipping my viewport to bottom left quadrant of window

fireking

Using Mac version...

I'm displaying objects in a QGLView window and I cannot get the viewport to match the window size. It keeps drawing all my object in bottom left quadrant of the screen.

Resizing has no effect. Actually, when I implement resizeGL is does not even get called?

@
void CubeView::paintGL(QGLPainter *painter)
{
painter->setStandardEffect(QGL::LitMaterial);
painter->setFaceColor(QGL::AllFaces, QColor(170, 202, 0));

// Draw the set of objects in the scene.
if ( !vdm.isEmpty())
{
    // Need to traverse all the SceneNodes and draw them...
    foreach(  VisualDataModel *VisualDataItem, vdm )
    {
        VisualDataItem->getNode()->draw(painter);
    }
}

}
@

fireking

So reading bugs... I'm guessing this is related to hiDPI support for Mac since window is 2x viewport dimensions? Should I be using Qt3D / OpenGL on Mac with Retina Display?

Changing display resolution does not seem to help.

arici

I found a workaround - in qglwindowsurface.cpp modify the function QRect QGLWindowSurface::viewportGL() const, changing the return statement to:
@
return QRect(0,0,geom.width() * window()->devicePixelRatio(), geom.height() * window()->devicePixelRatio());
@
Multiplying by devicePixelRatio handles scaling by two - should work on other platforms as well but I haven't tested it.